Lesson 3: Classification of Matter
Duration of Days: 3
Lesson Objective
LP 1.1 - I can construct and defend a claim stating whether an observed change was a physical change or chemical change
What are some ways that matter can be changed, but still be considered the same type of matter as before the change? (Ex. How can a log of wood be changed, but still be considered wood?)
What are some ways that matter can be changed, and not be the same type of matter as before the change? (Ex. How can a log of wood be changed into something that is no longer considered 'wood'?)
physical change
chemical change
GS 2b, 2c: Investigations - Students can design and conduct appropriate scientific investigations.
GS 4a, 4c: Data Analysis and Interpretation - Students can analyze and interpret scientific data and solve problems using a range of tools, technology and mathematical techniques.
GS 5a, 5b, 5d: Explanation and Argumentation - Students can develop evaluate and critique scientific claims/explanations, arguments and solutions based on evidence from the natural and designed world.
Day 1)
- Post guiding questions. Have student 'think-pair-share' their answers.
- Demonstrate easy examples of physical changes
** tearing paper, stretching/rolling Playdoh, straighten paper clip
-Demonstrate easy examples of chemical changes
** burning paper, Mg + HCl, frying an egg
- Develop definition of 'physical change' & 'chemical change'
- Demonstrate challenging examples of physical and chemical changes
** boiling/freezing water; dissolving salt in water, digesting food, etc
Day 2
-Lab: Exploring Physical & Chemical Changes
Day 3
- Demonstrate Penny/Nitric Acid lab
The chemical and physical properties of matter determine whether a substance is suitable for specific uses. For example, copper pipes are used to move water because copper is malleable, strong, and relatively unreactive. A replacement for copper piping must meet these same criteria.
https://docs.google.com/document/d/1siFIsOAs45CxuUlyJt9dNRdT70eTva14fJMeE1qXHPk/edit?usp=sharing
WS: Chemical & Physical Changes
Post Lab Analysis
Review of student created definitions
Pop quiz on identification of physical & chemical changes
HMH Text - Unit 1, Exploration 1
Lecture Notes